Spex Polarized Gold Lenses are excellent for use on the water and in low light conditions and variable lighting conditions, such as very early mornings, late afternoons or mid day major cloud cover. The Polarized Gold Lens tint takes almost all blue out of the color spectrum - which really brightens things up on a cloudy day. Blue is the most prevalent color in the light spectrum and Gold Polarized Lenses really enhance your vision. Polarized Lenses eliminate reflective glare and are ideal for water sports. Choose Gold for the most contrast in very low light conditions.